Why Retirees Fear Healthcare Costs — And What Medicare Actually Covers

Retirement should come with a sense of financial relief, but for millions of Medicare beneficiaries, it arrives with a new and persistent anxiety: the cost of healthcare. Research from the Center for Retirement Research at Boston College consistently finds that healthcare expenses rank as one of the top financial fears among retirees — and the numbers behind that fear are entirely rational. Unlike most consumer costs, medical expenses are unpredictable, can spike dramatically in a single year, and fall on individuals in ways that employer-sponsored insurance largely shielded them from during their working lives. Understanding exactly why healthcare costs feel so threatening — and what tools exist to manage them — is the first step toward building a more secure retirement.

Original Medicare, the federal program that covers most Americans 65 and older, is built around two core parts. Part A covers inpatient hospital stays, skilled nursing facility care, hospice, and some home health services. Part B covers outpatient care: doctor visits, lab work, preventive screenings, durable medical equipment, and outpatient procedures. In 2025, the standard Part B premium is $185.00 per month, though higher-income beneficiaries pay more through a surcharge called IRMAA (Income-Related Monthly Adjustment Amount), which can push that monthly cost to $628.90 for individuals with incomes above $500,000. The Part A hospital deductible in 2025 is $1,676 per benefit period — not per year, meaning a beneficiary hospitalized twice in one year could owe that deductible twice.

The structural problem with Original Medicare that drives so much retiree anxiety is the absence of an out-of-pocket maximum. Under traditional employer insurance, your plan caps what you can spend in a year — often $5,000 to $8,000 — and then covers 100% of costs above that ceiling. Original Medicare has no such ceiling. Part B covers 80% of approved costs after you meet the annual deductible ($257 in 2025), and you owe the remaining 20% indefinitely. For a beneficiary who undergoes cancer treatment, a major surgery, or a prolonged hospitalization, that 20% coinsurance can translate into $20,000, $50,000, or more in a single year. This is not a theoretical risk — it is the lived reality for hundreds of thousands of beneficiaries annually, and it is the core reason healthcare cost anxiety is so widespread among retirees.

The most direct way to close this coverage gap is through a Medigap supplemental insurance policy, also called Medicare Supplement Insurance. These are private plans sold by insurance companies that are standardized by the federal government into lettered plan types — Plan G, Plan N, and Plan F being the most commonly purchased. Plan G, for example, covers the Part A deductible, all Part B coinsurance after you pay the annual Part B deductible, skilled nursing facility coinsurance, and foreign travel emergency care. In practical terms, a beneficiary with Plan G faces very limited out-of-pocket exposure beyond the monthly premium and the Part B deductible. Monthly premiums for Plan G vary significantly by age, location, and insurer — ranging from roughly $100 to $300 or more per month for a 65-year-old — but the predictability that comes with that premium can be worth considerably more than the cost for someone managing a chronic condition or facing a major health event.

Medigap plans are sold with important enrollment rules that every beneficiary should understand before their 65th birthday. The federal Medigap Open Enrollment Period begins the month you turn 65 and are enrolled in Part B, and it lasts six months. During this window, insurers cannot deny you coverage or charge you more based on your health history — this is called guaranteed issue. Once that window closes, insurers in most states can use medical underwriting, meaning they can reject your application or charge higher premiums if you have pre-existing conditions like diabetes, heart disease, or a history of cancer. Missing this enrollment window is one of the most consequential and irreversible mistakes a new Medicare beneficiary can make. If you are approaching 65, the six-month Medigap open enrollment window is a deadline worth treating with the same seriousness as a tax filing date.

A smaller group of states have enacted additional consumer protections that create ongoing opportunities to switch Medigap plans without medical underwriting. These birthday rule states — California, Idaho, Illinois, Kentucky, Louisiana, Maine, Maryland, Missouri, Nevada, New Jersey, New York, Oklahoma, and Oregon — give beneficiaries a 30-day window around their birthday each year to switch to an equal or lesser Medigap plan without answering health questions. New York and Connecticut go further, requiring guaranteed issue for Medigap plans year-round. If you live in one of these states and are currently in a Medigap plan that no longer fits your needs or budget, your birthday window may be an opportunity to shop for better pricing without risking rejection.

For beneficiaries who find Medigap premiums unaffordable, Medicare Advantage plans — also called Part C — offer an alternative approach to cost control. These are private plans approved by Medicare that bundle Part A, Part B, and usually Part D drug coverage into a single plan, often with lower or zero monthly premiums. In 2025, the average Medicare Advantage plan premium is around $17 per month, though many plans in competitive markets carry $0 premiums. The trade-off is that Medicare Advantage plans use networks of doctors and hospitals, often require prior authorizations for certain procedures, and impose their own cost-sharing structures including copays and an annual out-of-pocket maximum. That maximum — which must be no higher than $9,350 for in-network services in 2025 — is actually a meaningful protection that Original Medicare alone does not provide. However, Medicare Advantage plans change their benefits, premiums, and networks every year, which means a plan that worked well in 2024 may look quite different in 2025.

For lower-income beneficiaries, the federal government offers programs that can dramatically reduce healthcare costs. The Medicare Savings Programs (MSPs) are state-administered programs that help pay Part B premiums, deductibles, and coinsurance for beneficiaries with limited income and assets. The Qualified Medicare Beneficiary (QMB) program, for example, covers Part A and Part B premiums, deductibles, and cost-sharing for individuals with incomes at or below roughly $1,275 per month in 2025 (the threshold varies slightly by state). The Extra Help program, also called the Low Income Subsidy (LIS), helps with Part D prescription drug costs and can reduce drug copays to as little as $4.50 for generics and $11.20 for brand-name drugs in 2025. Millions of eligible beneficiaries are not enrolled in these programs simply because they don't know they qualify — the Social Security Administration and your State Health Insurance Assistance Program (SHIP) counselor can help you apply at no cost.

Prescription drug costs are a separate and significant driver of retiree healthcare anxiety. The Inflation Reduction Act of 2022 introduced a $2,000 annual out-of-pocket cap on Part D drug costs beginning in 2025 — a major change that eliminates the catastrophic spending tier that previously left some beneficiaries paying thousands of dollars per year for specialty medications. This cap applies to all standalone Part D plans and Medicare Advantage plans with drug coverage. Beneficiaries who previously hit the coverage gap — the so-called donut hole — and faced sharply higher cost-sharing will now see their out-of-pocket drug spending stop at $2,000 for the calendar year. For beneficiaries on expensive medications for conditions like rheumatoid arthritis, multiple sclerosis, or cancer, this change may represent thousands of dollars in annual savings.

Long-term care is the healthcare cost that most retirement planning models underestimate. Original Medicare covers skilled nursing facility care only under specific conditions — you must have a qualifying three-day inpatient hospital stay first — and it covers only up to 100 days per benefit period, with significant daily coinsurance after day 20 ($209.50 per day in 2025). Medicare does not cover custodial care: help with bathing, dressing, eating, or other activities of daily living in a nursing home or assisted living facility. The median annual cost of a private room in a nursing home exceeded $108,000 in 2023, according to Genworth's annual cost of care survey. Medicaid covers long-term care for beneficiaries who have spent down their assets to very low levels, but the rules vary significantly by state and the process of qualifying can be complex and emotionally difficult. Long-term care insurance, hybrid life insurance policies with long-term care riders, and careful asset planning with an elder law attorney are the primary tools available to address this gap — and the earlier you plan, the more options you have.

The anxiety retirees feel about healthcare costs is not irrational — it reflects a genuine structural reality in how Medicare is designed. But anxiety without action is the most expensive response. The Annual Enrollment Period running from October 15 through December 7 each year is your opportunity to review and change your Medicare Advantage or Part D plan for the following year. The Medicare Open Enrollment Period from January 1 through March 31 allows beneficiaries already in Medicare Advantage to switch to a different Advantage plan or return to Original Medicare. Your State Health Insurance Assistance Program offers free, unbiased counseling from trained volunteers who can help you compare plans, check your eligibility for cost-saving programs, and review your coverage — find your local SHIP counselor at shiphelp.org. Taking these steps systematically, rather than waiting for a health crisis to force the issue, is the most effective way to convert healthcare cost anxiety into genuine financial security.